Asked by Happy Face

A car going at 30 m/s undergoes acceleration of 2 m/s^2 for 4 sec. How far did it travel while it was accelerating??

Plz help thx
Answered by Anonymous
like I said, at every second the speed (30m/s) increases by 2m/s

so, 30m/s+ (2m/s^2)(4s)
Answered by Happy Face
how did you get that answer?
I mean like what is the formula to find out how far it was accelerating?
Answered by Anonymous
opps, I read the problem incorrectly. Here's the formula.

The distance = (1/2)*(acceleration)*(time)^2 + (initial velocity)*(time).
Answered by Happy Face
what is the initial velocity?
Answered by Anonymous
30m/s (the speed you start with)
Answered by Happy Face
but i got 184 for the distance...is that right? And also, on this answer sheet it says that the distance is 136 not 184. Is that correct or wrong?
Answered by TutorCat
It is 136. check your work!
Answered by Happy Face
thx!
i must've made a calculation error.
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